这种异种杂交是非常有限的，因为他们的后代是不育的。
Such interbreeding is usually limited because the offspring are sterile.
在植物方面，我们已有确实的证据，表明杂交物种的不育性一定是由于某种原理而起。
With plants we have conclusive evidence that the sterility of crossed species must be due to some principle.
应用化学杂交剂(CHA)诱导雄性不育是小麦杂种优势利用的重要途径之一。
Male sterility of wheat inducing by Chemical hybridization agents (CHA) is one of the main ways to produce hybrid wheat seed.
对辣椒黄绿苗突变体的隐性叶色标记技术在纯度鉴定，提高杂交种子纯度以及在辣椒雄性不育中的作用及应用前景进行了探讨。
The leaf color mark technology of yellow-green seedling mutant is discussed in the function of purity identification, hybrid seed purity improvement and male sterility in hot pepper.
是开展黄籽优质杂交油菜育种的优良不育系。
It is a good sterile line for breeding of quality hybrid rape varieties with yellow peel.
配合力分析表明：一般配合力较好的父本290-1和雄性不育系240可作为优良的杂交育种亲本；
The analysis of combining ability showed that Father plant 290-1 and Male sterile line 240 which had high GCA could be regarded as good crossing parents.
“优I458”是利用野败同型不育系“优IA”与本所育成的早稻强恢复系“R458”配制而成的杂交早稻新组合。
"You I458" is a new hybrid rice combination, which is bred by crossing between wild-abortive homeotypic cytoplasmic male sterile "You IA" and strong restoring line "R458".
这个不育系的育性表现比较稳定，有可能用于无花粉观赏向日葵杂交种的生产。
Its sterility shows stable and is a potential recourse to produce pollen-free ornamental sunflower hybrid.
温敏型雄性不育（TGMS）材料对两系杂交水稻的生产起到很重要作用。
The thermo-sensitive genic male sterility (TGMS) lines play a crucial role in two-line hybrid rice production.
光温敏不育系不育性表达不稳定是近年来两系杂交水稻研究和应用中遇到的一大难题。
The meaning of ISE was defined; the complexity of fertility expression of PTGMS lines, the drift of critical sterility inducing tempera tu.
采用榨菜细胞质雄性系为不育源，通过变种间杂交和回交的方法，转育叶用芥菜细胞质雄性不育种质。
The cytoplasmic male sterility (CMS) was transferred into leaf mustard by inter varietal hybridization and subsequent backcrosses cms donor as using tuber mustard.
以具广泛代表性的6个不育系和9 个恢复系及其配制的54 个组合为材料研究了现有籼型三系杂交水稻米质状况。
The grain quality of the existing three line indica hybrid rice was studied with widely used 6 A lines, 9 R lines and their 54 hybrids as the materials.
但因光a纯合态的低衣分，其亲本繁殖和杂交制种时皮棉产量降低，故光a不育系在杂种优势中的利用有优势又有劣势。
However, Guang a has disadvantages as well as advantages in the utilization of heterosis because of its low lint percentage in parent propagation and hybrid seed production.
因此番茄雄性不育的研究对于番茄杂交育种非常重要。
So the investigation to tomato male sterility plays an important role in tomato hybrid breeding.
用已育成的显性雄性不育六倍体小黑麦为母本分别与硬粒小麦、二粒小麦及黑麦杂交，并每代选不育株用原父本回交。
The male-sterile plants from the crosses between dominant male-sterile hexaploid triticale and durum wheat as well as bearded wheat were backcrossed many times with the same male parents.
采用不完全双列杂交的方法，研究了不同雄性不育细胞质对高粱主要农艺性状的影响。
The influence of different male sterile cytoplasms upon sorghum main agronomic traits was studied by using incomplete diallel cross.
获得遗传性状优良雄性不育系是苜蓿雄性不育系应用在杂交制种中急待解决的问题。
It is a very urgent problem to find male sterile lines of alfalfa that have fine genetic characters in seed production of crossing.
本文综述了利用生物技术培育转基因雄性不育的多种策略，以及繁育用作大田配制杂交种的母本雄性不育系的新方法；
This paper reviewed the strategies of producing male sterility by gene engineering and new ways for the reproduction of male sterility lines use as a female parent in hybrid seed production.
本发明为一种利用亚麻雄性不育杂交亚麻的培育方法，涉及农作物培育领域。
The invention relates to a cultivating method to utilize flax male sterility to hybrid flax, belonging to the field of crop cultivation.
因此，杂交稻抗虫性的提高有赖于不育系的改良。
Thus, CMS lines are needed to improve insect pest resistance in hybrid rice.
“华两优106”是以早熟早籼型温敏核不育系“M103S”为母本，与早稻新品系“T1005”配组而成的两系法杂交早稻新组合。
"Hualiangyou 106" was bred by crossing between early-maturing early indica temperature-sensitive genetic male sterile line "M103S"(mother parent) and new early rice line "T1005".
野败（WA）型细胞质的不育系在籼型杂交稻中应用广泛，将WA型细胞质导入粳稻后发现其恢复系较难找到。
WA type Cytoplasmic Male Sterile (CMS -WA)lines have being widely applied to hybrids of indica rice, but restorer lines were hardly found when CMS -WA was transferred into japonica rice.
用9个玉米和水稻线粒体基因探针与酶切条带杂交发现，不育系与保持系线粒体DNA的相同大小酶切片段含有相似的顺序。
Homologous sequences of mtDNA were found between MS and maintainer lines by using 9 probes of maize and rice to hybridize with digested mtDNA.
这些种质资源对选育新的抗病恢复系和抗病不育系以及高产抗病杂交稻新组合具有重要利用价值。
It had an important value for breeding new restorer lines resistant to blast and new male-infertile lines resistant to blast and new high-yield hybrid rice combinations resistant to blast.
珍汕97A、 协青早A的一般配合力高，是配制迟熟杂交稻组合的主体不育系。
The general combining ability of Zheng shan97A and Xieqin Zao A is high . They are main sterile lines for breeding of late hybrid rice combinations.
杂交水稻种子存在较严重的裂颖现象，这是不育系的一种遗传特性。
Hybrid rice seeds show a serious glume dehiscence which is a genetic characteristic of male sterile lines.
条件型雄性不育是指植株在特定的条件下育性相互转换，可以作为两用系，用于两系法杂交制种。
Conditional (reversible) male sterile line in plants would be fertile under special conditions, and thus could be used as two-line to produce hybrid seeds.
黄牛和牦牛远缘杂交后代犏牛雄性不育是牦牛杂交改良中的一大难题。
The infertility of cattle-yak, which is the hybrid offspring of cattle and yak, is a difficult problem in cross-breeding and improvement of yak.
以中国高粱胞质雄性不育系“吉农105”为研究试材，用9个常用高粱恢复系与之杂交，并对其杂种后代F 1、F2及BC1的育性分离比例进行了统计调查。
The separation of fertility in F1, F2 and BC1 from crosses between cytoplasmic male sterile line of Chinese sorghum "Jinong 105" and 9 restoring lines of sorghum were statistically analysed.
以中国高粱胞质雄性不育系“吉农105”为研究试材，用9个常用高粱恢复系与之杂交，并对其杂种后代F 1、F2及BC1的育性分离比例进行了统计调查。
The separation of fertility in F1, F2 and BC1 from crosses between cytoplasmic male sterile line of Chinese sorghum "Jinong 105" and 9 restoring lines of sorghum were statistically analysed.
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